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Weak acids ionize partly ( <1% ionize) in water to give hydrogen ion. 弱酸在水中部份电离(<1%25电离)，放出氢离子。
Weak alkalis ionize partly ( <1% ionize) in water to give hydroxide ion. 弱碱在水中部份电离，放出氢氧离子。
Weak acids(e. g.CH3COOH)are only partly dissociated because H3O+ is a stronger acid than the free acids. 弱酸（例如CH3COOH）在水中部分解离，因为H3O+是比自由酸根强的酸根。
Air,Compressed ari, Water, hotn water, weak acid, etc. 空气、压缩空气、水、海水、热水、弱酸等。
3. Weak alkalis ionize partly ( <1% ionize) in water to give hydroxide ion. 弱碱在水中部份电离，放出氢氧离子。
Amino acids are weak acids and weak bases, therefore, they are excellent buffering agents. 氨基酸是弱酸和弱碱，因此，它们是很好的缓冲剂。
Counter etch A weak acid solution, e. G. Acetic acid, used to clean a plate chemically before coating. 清洗腐蚀剂化学性的版面清洗,在涂布乐膜前使用。它是一种弱酸溶液,如醋酸等。
Counter etch: A weak acid solution ,e.g. acetic acid , used to clean a plate chemically before coating . 清洗腐蚀剂:化学性的版面清洗，在涂布乐膜前使用。它是一种弱酸溶液，如醋酸等。
They involve a chemical equilibrium between a weak acid and its salt or a weak base and its salt. 它包含弱酸及弱酸盐与弱碱和弱碱盐之间的化学平衡。
Apply to water, water, steam, all kinds of oils, solvents, weak acid, alkali, ethanol, and other media. 适用于水、海水、蒸汽、各种油类、溶剂、弱酸、碱、乙醇等介质。
The total selectivity of methylphenyl oxalate (MPO) and DPO was up to 99.2% over TS?1, which was a weak acid. 以弱酸TS-1分子筛为催化剂;MPO和DPO总选择性为99.;2%25。
The structure and properties of macroporous strong base - weak acid amphoteric resin were studied by using IR and DTA. 利用红外光谱、差热分析对大孔强碱弱酸两性树脂的结构与性能作些探讨。
The improved synthetic process of the weak acid dyestuff, Blue BS was described in this paper. 本文重点介绍了弱酸兰BS染料合成改进工艺。
The Na salts of weak acids （eg, barbiturates, salicylates） dissolve faster than their corresponding free acids regardless of the pH of the medium. 不管介质的pH是多少，弱酸的钠盐（如巴比妥酸盐，水杨酸盐）比其相应的游离酸溶解得快。
The dyeing process and the performance of weak acid dyes using additive WMJ for wool at low temperatures are studied. 文章探讨了弱酸性染料使用低温添加剂WMJ对羊毛进行染色的工艺及染色性能。
The Na salts of weak acids （eg, barbiturates, salicylates） di olve faster than their corre onding free acids regardle of the pH of the medium. 不管介质的pH是多少，弱酸的钠盐（如巴比妥酸盐，水杨酸盐）比其相应的游离酸溶解得快。
Weak acid, so that it can work with any insecticides, fungicides, herbicides and so on a mix of mutual synergy. 弱酸性，可使其能与任何杀虫剂、杀菌剂、除草剂等混用，相互增效。
The emulsion of MFX is stable to dilute salt solutions,weak acid or alkali and hard water. 该产品在弱酸、碱、盐溶液中稳定,并能耐一般硬水。
The spirit is willing but the flesh is weak. 心有余而力不足。
When the weak acid is given orally, the concentration gradient for un-ionized drug between stomach and plasma tends to be large, favoring diffusion through the gastric mucosa. 当这种弱酸性药物经口服给药时，胃与血浆之间的非解离型药物浓度梯度很大，从而有利于透过胃粘膜扩散。